hiding hiding

Britney Spears was spotted in the back seat of her car with a mystery man when she left Conway Recording Studios yesterday, and after that the two went on a dinner date at Nobu! We're not sure if this was a business meeting or the beginning of a new romance (Jason Trawick who?) but we have to wonder!

She just recorded the first track for her new album yesterday with Dr. Luke and Max Martin but the dark-haired hunk hidden under the hoodie doesn't look like either of them.

After the duo got sushi in West Hollywood, they headed to the Sunset Marquis, and when we snapped the pop star pulling out of the hotel, and the unidentified man was hiding in the back of Brit's Mercedes SUV!!! He went back to her Calabasas home, according to our photographers. A sleepover?! Maybe it was just a meeting? What will Jason say?!